Simulation method for simulating a real control for an industrial process, a system, or a machine, and simulation system for carrying out such a simulation method
AssigneeSiemens Aktiengesellschaft
InventorKARL-JOSEF AMTHOR
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Abstract
Simulation methods for simulating a real control (2) for an industrial process, a plant or a machine shall be able to determine errors occurring in the course of simulation more easily. For this purpose the invention proposes that the simulation system (7) stores intermediate states during the simulation and time-stamps them, wherein a stored intermediate state can be reloaded into the simulation system (7) at a later time and a simulation carried out on the basis thereof. As a result, simulations do not always need to start with the beginning of the control program to be simulated.
Claims12
-11. (canceled)
A simulation method for simulating a real control for an industrial process, a plant or a machine, said simulation method comprising:
- specifying a control program for controlling the industrial process, plant or machine for a simulation system;
- determining by the simulation system control commands for the industrial process, plant or machine while the control program is being executed by a simulation program;
- determining by the simulation system expected actual values of the industrial process, plant or machine on the basis of a model of the industrial process, plant or machine and taking the actual values into account in a simulation;
- storing by the simulation system intermediate states during the simulation and time-stamping the intermediate states;
- and
- reloading a stored intermediate state into the simulation system at a later time and carrying out a simulation on the basis thereof;
- wherein the control program is modified and/or wherein memory contents and/or system states are changed manually before the simulation is restarted.
A simulation system for simulating a real control for an industrial process, a plant or a machine, said simulation system comprising a control program configured to control the industrial process, plant or machine, said simulation system being configured to:
- determine control commands for the industrial process, plant or machine while the control program is being executed by a simulation program,
- determine expected actual values of the industrial process, plant or machine on the basis of a model of the industrial process, plant or machine and taking the actual values into account in a simulation;
- store intermediate states during the simulation and time-stamp the intermediate states;
- and
- reload a stored intermediate state into the simulation system at a later time and carry out a simulation on the basis thereof;
- wherein the control program is modifiable and/or wherein memory contents and/or system states are changeable manually prior to a restart of the simulation.
A data medium having stored thereon a control program for carrying out a simulation method as claimed in claim 11.
Dependencies are inferred from the claim text.